Oklahoma County, OK

ZIP 73116

In ZIP 73116, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Nichols Hills has 2 contaminants at or over an EPA legal limit; 11 contaminants are above health goals, led by lead at 47× California’s Public Health Goal.
• Nearest Superfund site: Double Eagle Refinery Co., 5.3 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Smico Manufacturing Co Inc. (35%), mostly chromium.
• Fine particles (PM2.5) average 8.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 20,693 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 73116

• Superfund sites nearbyA
• Factories and industrial sitesB to C
• Oil and gas wellsD to F
• Parks and nature nearbyC to F
• Air qualityD to F
• Drinking water qualityD to F
• Pesticide useB to D
• Neighborhood health statusB to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsC

Based on 17 census tracts · compiled September 10, 2026 · how each grade works and its sources

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